Question 1
7 people (Hermes, Meena, Barbara, Sakura, Hikari, Riley, Manish) live on floors 1 to 7, one person per floor.
Based on these clues:
• Manish lives exactly 2 floors above Barbara
• There is exactly one floor between Sakura and Hikari
• Barbara's floor number is congruent to 1 modulo 3
• Meena lives on floor 1
• Sakura and Riley are exactly 2 floors apart
• Hikari lives above Riley
On which floor does Barbara live?
The unique arrangement (floor: person) is: {1: 'Meena', 2: 'Hermes', 3: 'Riley', 4: 'Barbara', 5: 'Sakura', 6: 'Manish', 7: 'Hikari'}.